| /* Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| /** |
| * This file defines the <code>PPB_Buffer_Dev</code> interface. |
| */ |
| label Chrome { |
| M14 = 0.5 |
| }; |
| |
| [assert_size(4)] |
| enum PP_ScrollBy_Dev { |
| PP_SCROLLBY_PIXEL = 0, |
| PP_SCROLLBY_LINE = 1, |
| PP_SCROLLBY_PAGE = 2, |
| PP_SCROLLBY_DOCUMENT = 3 |
| }; |
| |
| /** |
| * The interface for a scrollbar. A scrollbar is a widget, so the functions |
| * in PPB_Widget can also be used with scrollbar objects. |
| */ |
| interface PPB_Scrollbar_Dev { |
| /** |
| * Create a new scrollbar. Returns 0 if the instance is invalid. |
| */ |
| PP_Resource Create([in] PP_Instance instance, |
| [in] PP_Bool vertical); |
| |
| /** |
| * Returns PP_TRUE if the given resource is a Scrollbar. Returns PP_FALSE if |
| * the resource is invalid or some type other than a scrollbar. |
| */ |
| PP_Bool IsScrollbar([in] PP_Resource resource); |
| |
| /** |
| * Gets the thickness of a scrollbar. |
| */ |
| uint32_t GetThickness([in] PP_Resource resource); |
| |
| /** |
| * Returns PP_TRUE if the system scrollbar style is an overlap scrollbar. |
| */ |
| PP_Bool IsOverlay([in] PP_Resource scrollbar); |
| |
| /** |
| * Gets the value of the scrollbar. |
| */ |
| uint32_t GetValue([in] PP_Resource scrollbar); |
| |
| /** |
| * Sets the value of the scrollbar. |
| */ |
| void SetValue([in] PP_Resource scrollbar, |
| [in] uint32_t value); |
| |
| /** |
| * Set the document size (i.e. total length of the region that's being |
| * scrolled). |
| */ |
| void SetDocumentSize([in] PP_Resource scrollbar, |
| [in] uint32_t size); |
| |
| /** |
| * Updates the tickmarks. Only valid for vertical scrollbars. "tick_marks" |
| * contains "count" PP_Rect objects. |
| */ |
| void SetTickMarks([in] PP_Resource scrollbar, |
| [in, size_as=count] PP_Rect[] tick_marks, |
| [in] uint32_t count); |
| |
| /** |
| * Scroll by "multiplier" pixels/lines/pages units. Positive values are |
| * forward and negative are backward. If "unit" is document then any positive |
| * value goes to the end while any negative value goes to the beginning. |
| */ |
| void ScrollBy([in] PP_Resource scrollbar, |
| [in] PP_ScrollBy_Dev unit, |
| [in] int32_t multiplier); |
| }; |